Iowa Hawkeye coach Erik Campbell leaves program

Ferentz also says D.J. Hernandez has joined his staff as a graduate assistant. He replaces David Raih, who left for a job at Texas Tech.

Ferentz didn’t elaborate on the departure of Campbell, who had been with the program since 2008, other than to say Campbell wants to pursue other opportunities. But Iowa’s passing game struggled mightily in 2012, as quarterback James Vandenberg threw just seven TD passes in 12 games.

Hernandez, the brother of New England Patriots star Aaron Hernandez, played wide receiver and quarterback at Connecticut. He spent one season at Brown before joining the Hurricanes in 2011.